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Author Topic: Creating an offline paper wallet for cold storage  (Read 746 times)
oprahwindfury (OP)
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December 31, 2013, 07:23:09 PM
 #1

I wanted to start this topic as a tip for fellow newbies who are trying to secure their btc from an online wallet to an offline source. I had some trouble with this when first starting out and it was a bit frustrating so I wanted to give everyone a look-see at the method I used. It was very easy to do.

This can be confusing and nerve-wracking to do, if you have never done it before. This is what I have done:

The one-time operation of setting up an offline-only brainwallet/paperwallet:

1. put a new USB stick into computer A (online machine)
2. Go to https://www.bitaddress.org/bitaddress.org-v2.4-SHA1-1d5951f6a04dd5a287ac925da4e626870ee58d60.html
3. right click on the page and Save as.. -> Webpage, complete
4. Download this onto the USB stick as well: https://www.strongcoin.com/downloads/offlineTransaction.zip
5. remove the USB stick from the online computer, and put it into computer B (offline computer. For this, I just use a Raspberry Pi)
6. Open The bitaddress.org page on the offline machine, and go to the brain wallet tab.
7. Create an alphanumeric passphrase, which generates your public/private keypair.
8. Save the public key (your wallet's address) into a file on the USB stick, and call it publicKey.txt (or whatever you want)
9. Write down the passphrase that you used to generate the public/private keypair and put the paper in a safe, safe deposit box, treasure chest that you bury in your backyard, or wherever else you like (or, if you're sufficiently paranoid, just remember it)

Done and done, Smiley

jongameson
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December 31, 2013, 07:25:55 PM
 #2

I'd prefer a USB stick, because they are somewhat resistant to fire.  Maybe a paper wallet in addition to USB stick, then if one fails u have the other?
Olano
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December 31, 2013, 07:39:20 PM
 #3

Interesting, Thanks
begcoin
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December 31, 2013, 07:42:56 PM
 #4

I think I finally trust bitaddress.
oprahwindfury (OP)
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December 31, 2013, 07:53:12 PM
 #5

I'd prefer a USB stick, because they are somewhat resistant to fire.  Maybe a paper wallet in addition to USB stick, then if one fails u have the other?

Yeah I had a sony usb drive fail on me after only 2 months so I'm a little wary of using usb storage. What I would do is just put my paper wallet into a metal safe if you're worried about a fire.

hashp2p
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December 31, 2013, 10:41:14 PM
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I'd prefer a USB stick, because they are somewhat resistant to fire.  Maybe a paper wallet in addition to USB stick, then if one fails u have the other?

Yeah I had a sony usb drive fail on me after only 2 months so I'm a little wary of using usb storage. What I would do is just put my paper wallet into a metal safe if you're worried about a fire.

I'd have to agree, I've had usb drives fail after 1 week before. Then gain I've had some for years that are still working fine. I would definitely have a paper wallet in addition to your usb drive.
muldoonski
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December 31, 2013, 11:32:43 PM
 #7

Apologize for my ignorance

Is it possible to back it up onto 2 USB drives (then I could have some redundancy on the backup)

I'm not storing hundreds of BTC - but I'd like to have the few I plan on keeping safely backed up.

oprahwindfury (OP)
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January 01, 2014, 01:23:45 AM
 #8

Apologize for my ignorance

Is it possible to back it up onto 2 USB drives (then I could have some redundancy on the backup)

I'm not storing hundreds of BTC - but I'd like to have the few I plan on keeping safely backed up.



Do you mean have the same individual key on 2 drives? Like have 2 copies of the same wallet?

cp1
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January 01, 2014, 01:26:02 AM
 #9

Easy, your wallet is just a file, so make as many copies as you want.

Guide to armory offline install on USB key:  https://bitcointalk.org/index.php?topic=241730.0
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